CN106486895B - A kind of frame structure of power distribution cabinet - Google Patents

A kind of frame structure of power distribution cabinet Download PDF

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Publication number
CN106486895B
CN106486895B CN201611053119.0A CN201611053119A CN106486895B CN 106486895 B CN106486895 B CN 106486895B CN 201611053119 A CN201611053119 A CN 201611053119A CN 106486895 B CN106486895 B CN 106486895B
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stainless steel
triangle
big cavity
power distribution
distribution cabinet
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CN106486895A (en
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王慧敏
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Shandong Lianhao Electromechanical Equipment Co ltd
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Shandong Lian Hao Mechanical And Electrical Equipment Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/01Frameworks
    • H02B1/013Profiles for cabinet frames
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/18Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C08L23/20Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • C08L23/22Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Road Signs Or Road Markings (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention relates to a kind of frame structures of power distribution cabinet, specific restriction has been carried out by the composition of layer structure and wherein specific layer to frame structure, in the case where ensureing cost, has improved lighting degree, intensity is ensure that, to improve the service life of whole power distribution cabinet.

Description

A kind of frame structure of power distribution cabinet
Technical field
The invention belongs to alloy fields and field of electrical equipment, and in particular to a kind of frame structure of power distribution cabinet.
Background technology
Since its use environment is more special, intensity, corrosion resistance, lighting are required for very current power distribution cabinet High requirement.The improvement of power distribution cabinet internal part is focused in research more at present, for power distribution cabinet shell and inside subject frame The not too many research of frame structure is only to carrying out wire drawing electricity to surface after the reasonable selection of existing known material having The processing of plating etc. ensures its surface property.But if to improve intensity routinely be all using steel be used as main body frame with Shell, but since the proportion of steel is larger, lighting can be lost again, it is satisfactory to both parties to be difficult to.
Invention content
The present invention is by proposing a kind of frame structure of power distribution cabinet.
It is realized especially by following technological means:
A kind of frame structure of power distribution cabinet, the frame structure include more crossbeams and Duo Gen longerons, the more crossbeams Welding forms the inner frame of power distribution cabinet after being mutually inserted with more longerons, the more crossbeams and the more longerons it is crosscutting Face is set as the structure of the big cavity of triangle and internal setting reinforcing beam, and the big cavity structure of triangle is compound by 5 ~ 8mm thickness Stainless steel plate is constituted, and the reinforcing beam of the inside is arranged using the composite stainless steel plate in the big cavity inside of triangle.
The composite stainless steel plate includes stainless steel substrate and the Polymer Synthesizing being coated on stainless steel substrate memory Rubber layer.
The Polymer Synthesizing memory rubber layer is made of the raw material of following mass percent:Butyl rubber(Or chlorination fourth Base rubber):21 ~ 29%, tackifying resin(Coumarone indene resin):16 ~ 19%, softening agent(Low molecular polyisobutylene):38 ~ 51%, prevent old Antioxidant:1 ~ 2%, filler(The mixture of rare earth and nano-calcium carbonate):6~8%.
The stainless steel substrate is by mass percentage:C:0.08 ~ 0.12%, Si:0.5 ~ 0.8%, Mn:0.9 ~ 1.5%, Ti:0.05 ~ 0.10%, Ni:0.3 ~ 0.5%, V:0.05 ~ 0.08%, Al:0.05 ~ 0.1%, Cr:1.0 ~ 1.8%, Mo:1.1 ~ 1.6%, Nb:0.05 ~ 0.08%, Cu:0.2 ~ 0.5%, N:0.005 ~ 0.008%, B:0.002 ~ 0.0035%, RE:0.01 ~ 0.02%, P< 0.02%, S<0.01%, surplus is Fe and inevitable impurity.
The average grain diameter of TiC phases is 1.1 ~ 1.6 μm in the microstructure of the stainless steel substrate, the average grain diameter of TiN phases It is 0.8 ~ 1.0 μm, and is non-bending part in the bending part TiC phases of the big cavity structure of the triangle and TiN phase average grain sizes(It is flat At plate)0.6 ~ 0.9 times.
Stainless steel substrate is first bent rolling by multiple tracks and is shaped to the big cavity of triangle by the composite stainless steel plate, so Then the reinforcing beam for welding the inside wherein afterwards is integrally formed the Polymer Synthesizing memory rubber layer outside it, To be molded the big cavity structure of the triangle for being internally provided with reinforcing beam of composite stainless steel harden structure.
Preferably, described prevent that old antioxidant is double(2,2,6,6- tetramethyl -4- piperidyls)Sebacic acid ester and β-(3,5- Di-tert-butyl-hydroxy phenyl)Positive ten caprylate of propionic acid.
Preferably, the stainless steel substrate carries out following heat treatment step after being shaped to the big cavity of triangle:
1)Semi-finished product after molding are placed in resistance furnace and are heated to 980 ~ 1080 DEG C, 50 ~ 80min is kept the temperature, then goes out Stove is quickly cooled to room temperature.
2)By step 1)550 ~ 580 DEG C are heated in treated semi-finished product merging tempering furnace, is kept the temperature after 1 ~ 1.5h with stove It is cooled to room temperature.
3)By step 2)Semi-finished product after high tempering, which are placed in tempering furnace, is heated to 180 ~ 220 DEG C, and heat preservation 20 ~ It comes out of the stove after 50min and is air-cooled to room temperature.
Preferably, step 3)Following steps are also carried out later:
4)By step 3)Product after processing, which is placed in deep cooling box, is cooled to -90 ~ -110 DEG C, keep the temperature 20 ~ Go out deep cooling box after 30min to restore to room temperature.
5)By step 4)180 ~ 220 DEG C are heated in product merging tempering furnace after processing, is gone out after keeping the temperature 20 ~ 50min Stove is air-cooled to room temperature.
Preferably, step 1)Described in come out of the stove quick water cooling the specific steps are first to the folding of the big cavity structure of triangle Crook carries out water-spraying control, whole water-spraying control again after the 5 ~ 12min that sprays water.
Effect of the invention is that:
1, by the way that the big cavity of the triangle internal shape that reinforcing beam is arranged simultaneously is arranged so that distributing cabinet frame structure is kept Lighting is also maintained in the case of high intensity so that power distribution cabinet overall weight alleviates, so as to preferably be moved Operation.
2, it is specifically limited by the layer structure to the big cavity of triangle and reinforcing beam material, inside setting is high-strength Stainless steel is spent, outside is integrally formed package macromolecule mixed rubber, integrally ensure that the intensity of frame structure.Due to being arranged to The structure of inner hollow, so if using conventional stainless steel, it will cause lateral intensity short slabs, are easy so that frame knot Structure generates the case where bending in lateral operation, and by the way that internal high-strength stainless steel is arranged, outside is integrally formed package macromolecule Structure as mixed rubber ensure that intensity, and the external effect that can play buffering, reach the interior strong of hollow-core construction Outer soft effect.
3, pass through the constituent content of the high-strength stainless steel substrate to center, specific different microstructure and heat treatment Mode is improved so that and it is different in different parts intensity, so as to preferably adapt to the big sky of specific triangle of the invention Chamber concrete structure.
Description of the drawings
Fig. 1 is the structural schematic diagram of the frame structure of power distribution cabinet of the present invention.
Fig. 2 is the structural schematic diagram in the big cavity structure cross section of triangle of the present invention(The crosscutting enlarged drawing of Fig. 1 circleds).
Fig. 3 is the layer structure schematic diagram of composite stainless steel plate of the present invention.
Wherein:1- crossbeams, 2- longerons, the big cavity of 3- triangles, 31- bending parts, 32 non-bending parts, 33- reinforcing beams, 34- Polymer Synthesizing memory rubber layer, 35- stainless steel substrates.
Specific implementation mode
Embodiment 1
A kind of frame structure of power distribution cabinet, the frame structure include more crossbeams and Duo Gen longerons, the more crossbeams Welding forms the inner frame of power distribution cabinet after being mutually inserted with more longerons, the more crossbeams and the more longerons it is crosscutting Face is set as the structure of the big cavity of triangle and internal setting reinforcing beam, and the big cavity structure of triangle is compound not by 6mm thickness The steel plate that becomes rusty is constituted, and the reinforcing beam of the inside is arranged using the composite stainless steel plate in the big cavity inside of triangle.
The composite stainless steel plate includes stainless steel substrate and the Polymer Synthesizing being coated on stainless steel substrate memory Rubber layer.
The Polymer Synthesizing memory rubber layer is made of the raw material of following mass percent:Butyl rubber:23%, ancient horse Grand resin:18%, low molecular polyisobutylene:50%, it is double(2,2,6,6- tetramethyl -4- piperidyls)Sebacic acid ester and β-(3,5- bis- Tert-butyl-hydroxy phenyl)Positive ten caprylate of propionic acid:1.5%, the mixture of rare earth and nano-calcium carbonate:7.5%.
The stainless steel substrate is by mass percentage:C:0.09%, Si:0.6%, Mn:1.1%, Ti:0.06%, Ni: 0.32%, V:0.06%, Al:0.06%, Cr:1.2%, Mo:1.3%, Nb:0.06%, Cu:0.3%, N:0.006%, B:0.0028%, RE:0.013%, P:0.002%, S:0.001%, surplus is Fe and inevitable impurity.
The average grain diameter of TiC phases is 1.3 μm in the microstructure of the stainless steel substrate, and the average grain diameter of TiN phases is 0.9 μm, and be non-bending part in the bending part TiC phases of the big cavity structure of the triangle and TiN phase average grain sizes(At tablet)'s 0.8 times.
Stainless steel substrate is first bent rolling by multiple tracks and is shaped to the big cavity of triangle by the composite stainless steel plate, so Then the reinforcing beam for welding the inside wherein afterwards is integrally formed the Polymer Synthesizing memory rubber layer outside it, To be molded the big cavity structure of the triangle for being internally provided with reinforcing beam of composite stainless steel harden structure.
The stainless steel substrate carries out following heat treatment step after being shaped to the big cavity of triangle:
1)Semi-finished product after molding are placed in resistance furnace and are heated to 990 DEG C, keep the temperature 60min, quick water of then coming out of the stove It is as cold as room temperature.Quick water cooling of coming out of the stove the specific steps are first to the bending part of the big cavity structure of triangle carry out water-spraying control, spray Whole water-spraying control again after water 8min.
2)By step 1)560 DEG C are heated in treated semi-finished product merging tempering furnace, is cooled to the furnace after keeping the temperature 1.2h Room temperature.
3)By step 2)Semi-finished product after high tempering, which are placed in tempering furnace, is heated to 192 DEG C, goes out after keeping the temperature 35min Stove is air-cooled to room temperature.
4)By step 3)Product after processing, which is placed in deep cooling box, is cooled to -98 DEG C, goes out after keeping temperature 25min Deep cooling box restores to room temperature.
5)By step 4)190 DEG C are heated in product merging tempering furnace after processing, comes out of the stove and is air-cooled to after heat preservation 33min Room temperature.
Tensile strength by detecting the stainless steel substrate is 921MPa.
Embodiment 2
A kind of frame structure of power distribution cabinet, the frame structure include 6 crossbeams and 6 longerons, 6 crossbeams and 6 Welding forms the inner frame of power distribution cabinet after root longeron is mutually inserted, and the cross section of the more crossbeams and the more longerons is set It is set to the structure of the big cavity of triangle and internal setting reinforcing beam, the big cavity structure of triangle is thick compound stainless by 5.2mm Steel plate is constituted, and the reinforcing beam of the inside is arranged using the composite stainless steel plate in the big cavity inside of triangle.
The composite stainless steel plate includes stainless steel substrate and the Polymer Synthesizing being coated on stainless steel substrate memory Rubber layer.
The Polymer Synthesizing memory rubber layer is made of the raw material of following mass percent:Chlorinated scoline:28%, Coumarone indene resin:18%, low molecular polyisobutylene:46%, prevent old antioxidant:2%, filler(The mixing of rare earth and nano-calcium carbonate Material):6%.
The stainless steel substrate is by mass percentage:C:0.11%, Si:0.62%, Mn:1.1%, Ti:0.09%, Ni: 0.39%, V:0.051%, Al:0.08%, Cr:1.6%, Mo:1.5%, Nb:0.068%, Cu:0.38%, N:0.006%, B: 0.0033%, RE:0.018%, P:0.01%, S:0.003%, surplus is Fe and inevitable impurity.
The average grain diameter of TiC phases is 1.5 μm in the microstructure of the stainless steel substrate, and the average grain diameter of TiN phases is 0.9 μm, and be 0.69 times of non-bending part in the bending part TiC phases of the big cavity structure of the triangle and TiN phase average grain sizes.
Stainless steel substrate is first bent rolling by multiple tracks and is shaped to the big cavity of triangle by the composite stainless steel plate, so Then the reinforcing beam for welding the inside wherein afterwards is integrally formed the Polymer Synthesizing memory rubber layer outside it, To be molded the big cavity structure of the triangle for being internally provided with reinforcing beam of composite stainless steel harden structure.
The stainless steel substrate carries out following heat treatment step after being shaped to the big cavity of triangle:
1)Semi-finished product after molding are placed in resistance furnace and are heated to 1050 DEG C, keep the temperature 60min, quick water of then coming out of the stove It is as cold as room temperature.
The quick water cooling of coming out of the stove the specific steps are first to the bending part of the big cavity structure of triangle carry out water-spraying control, It sprays water after 10min whole water-spraying control again.
2)By step 1)558 DEG C are heated in treated semi-finished product merging tempering furnace, is cooled to the furnace after keeping the temperature 1.1h Room temperature.
3)By step 2)Semi-finished product after high tempering, which are placed in tempering furnace, is heated to 186 DEG C, keeps the temperature 20 ~ 50min After come out of the stove and be air-cooled to room temperature.
4)By step 3)Product after processing, which is placed in deep cooling box, is cooled to -92 DEG C, goes out after keeping temperature 25min Deep cooling box restores to room temperature.
5)By step 4)210 DEG C are heated in product merging tempering furnace after processing, comes out of the stove and is air-cooled to after heat preservation 25min Room temperature.
Embodiment 3
A kind of frame structure of power distribution cabinet, the frame structure include more crossbeams and Duo Gen longerons, the more crossbeams Welding forms the inner frame of power distribution cabinet after being mutually inserted with more longerons, the more crossbeams and the more longerons it is crosscutting Face is set as the structure of the big cavity of triangle and internal setting reinforcing beam, and the big cavity structure of triangle is compound by 5.5mm thickness Stainless steel plate is constituted, and the reinforcing beam of the inside is arranged using the composite stainless steel plate in the big cavity inside of triangle.
The composite stainless steel plate includes stainless steel substrate and the Polymer Synthesizing being coated on stainless steel substrate memory Rubber layer.
The Polymer Synthesizing memory rubber layer is made of the raw material of following mass percent:Butyl rubber:23%, thickening Resin:18%, softening agent:50%, prevent old antioxidant:1%, filler:8%.
The stainless steel substrate is by mass percentage:C:0.10%, Si:0.62%, Mn:1.3%, Ti:0.08%, Ni: 0.33%, V:0.06%, Al:0.08%, Cr:1.2%, Mo:1.5%, Nb:0.06%, Cu:0.3%, N:0.006%, B:0.0025%, RE:0.011%, P:0.012%, S:0.0025%, surplus is Fe and inevitable impurity.
The average grain diameter of TiC phases is 1.2 μm in the microstructure of the stainless steel substrate, and the average grain diameter of TiN phases is 0.91 μm, and be the 0.65 of non-bending part in the bending part TiC phases of the big cavity structure of the triangle and TiN phase average grain sizes Times.
Stainless steel substrate is first bent rolling by multiple tracks and is shaped to the big cavity of triangle by the composite stainless steel plate, so Then the reinforcing beam for welding the inside wherein afterwards is integrally formed the Polymer Synthesizing memory rubber layer outside it, To be molded the big cavity structure of the triangle for being internally provided with reinforcing beam of composite stainless steel harden structure.
The stainless steel substrate carries out following heat treatment step after being shaped to the big cavity of triangle:
1)Semi-finished product after molding are placed in resistance furnace and are heated to 1030 DEG C, keep the temperature 65min, quick water of then coming out of the stove It is as cold as room temperature.
The quick water cooling of coming out of the stove the specific steps are first to the bending part of the big cavity structure of triangle carry out water-spraying control, It sprays water after 6min whole water-spraying control again.
2)By step 1)562 DEG C are heated in treated semi-finished product merging tempering furnace, is cooled to the furnace after keeping the temperature 1.5h Room temperature.
3)By step 2)Semi-finished product after high tempering, which are placed in tempering furnace, is heated to 200 DEG C, goes out after keeping the temperature 31min Stove is air-cooled to room temperature.
4)By step 3)Product after processing, which is placed in deep cooling box, is cooled to -96 DEG C, goes out after keeping temperature 23min Deep cooling box restores to room temperature.
5)By step 4)183 DEG C are heated in product merging tempering furnace after processing, comes out of the stove and is air-cooled to after heat preservation 31min Room temperature.

Claims (5)

1. a kind of frame structure of power distribution cabinet, which is characterized in that the frame structure includes more crossbeams and Duo Gen longerons, described Welding forms the inner frame of power distribution cabinet after more crossbeams and Duo Gen longerons are mutually inserted, and the more crossbeams and described more indulge The cross section of beam is set as the structure of the big cavity of triangle and internal setting reinforcing beam, and the big cavity structure of triangle is by compound Stainless steel plate is constituted, and the reinforcing beam of the inside is arranged using the composite stainless steel plate in the big cavity inside of triangle;
The composite stainless steel plate includes stainless steel substrate and the Polymer Synthesizing memory rubber that is coated on stainless steel substrate Layer;
The Polymer Synthesizing memory rubber layer is made of the raw material of following mass percent:Butyl rubber or chlorinated butyl rubber Glue:21 ~ 29%, tackifying resin:16 ~ 19%, softening agent:38 ~ 51%, prevent old antioxidant:1 ~ 2%, filler:6~8%;
The stainless steel substrate is by mass percentage:C:0.08 ~ 0.12%, Si:0.5 ~ 0.8%, Mn:0.9 ~ 1.5%, Ti: 0.05 ~ 0.10%, Ni:0.3 ~ 0.5%, V:0.05 ~ 0.08%, Al:0.05 ~ 0.1%, Cr:1.0 ~ 1.8%, Mo:1.1 ~ 1.6%, Nb: 0.05 ~ 0.08%, Cu:0.2 ~ 0.5%, N:0.005 ~ 0.008%, B:0.002 ~ 0.0035%, RE:0.01 ~ 0.02%, P<0.02%, S <0.01%, surplus is Fe and inevitable impurity;
The average grain diameter of TiC phases is 1.1 ~ 1.6 μm in the microstructure of the stainless steel substrate, and the average grain diameter of TiN phases is 0.8 ~ 1.0 μm, and the bending part TiC phases of the big cavity structure of the triangle and TiN phase average grain sizes be non-bending part 0.6 ~ 0.9 times;
Stainless steel substrate is first bent rolling by multiple tracks and is shaped to the big cavity of triangle by the composite stainless steel plate, is then existed The reinforcing beam of the inside is wherein welded, the Polymer Synthesizing memory rubber layer is then integrally formed outside it, to It is molded the big cavity structure of the triangle for being internally provided with reinforcing beam of composite stainless steel harden structure;
The stainless steel substrate carries out following heat treatment step after being shaped to the big cavity of triangle:
1)Semi-finished product after molding are placed in resistance furnace and are heated to 980 ~ 1080 DEG C, keep the temperature 50 ~ 80min, are then come out of the stove fast Speed is cooled to room temperature;It is described come out of the stove quickly be cooled to room temperature the specific steps are first to the bending part of the big cavity structure of triangle into Row water-spraying control, whole water-spraying control again after the 5 ~ 12min that sprays water;
2)By step 1)550 ~ 580 DEG C are heated in treated semi-finished product merging tempering furnace, keeps the temperature furnace cooling after 1 ~ 1.5h To room temperature;
3)By step 2)Semi-finished product after high tempering, which are placed in tempering furnace, is heated to 180 ~ 220 DEG C, keeps the temperature 20 ~ 50min After come out of the stove and be air-cooled to room temperature;
4)By step 3)Product after processing, which is placed in deep cooling box, is cooled to -90 ~ -110 DEG C, keeps 20 ~ 30min of the temperature After go out deep cooling box and restore to room temperature;
5)By step 4)180 ~ 220 DEG C are heated in product merging tempering furnace after processing, sky of coming out of the stove after 20 ~ 50min of heat preservation It is cooled to room temperature.
2. the frame structure of power distribution cabinet according to claim 1, which is characterized in that described to prevent that old antioxidant is double(2,2, 6,6- tetramethyl -4- piperidyls)Sebacic acid ester and β-(3,5- di-tert-butyl-hydroxy phenyls)Positive ten caprylate of propionic acid.
3. the frame structure of power distribution cabinet according to claim 1, which is characterized in that the tackifying resin is coumarone tree Fat, the softening agent are low molecular polyisobutylene.
4. the frame structure of power distribution cabinet according to claim 1, which is characterized in that the filler is rare earth and nano-calcium carbonate The mixture of calcium.
5. the frame structure of power distribution cabinet according to claim 1, which is characterized in that the composite stainless steel plate thickness be 5 ~ 8mm。
CN201611053119.0A 2016-11-25 2016-11-25 A kind of frame structure of power distribution cabinet Active CN106486895B (en)

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Publication number Priority date Publication date Assignee Title
CN107906098A (en) * 2017-12-19 2018-04-13 无锡优耐特能源科技有限公司 A kind of stand connection

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Publication number Priority date Publication date Assignee Title
US5070429A (en) * 1990-03-20 1991-12-03 Union Connector Co., Inc. Portable power distribution cabinet and power distribution network with removable intermediate electrical connector
CN2355195Y (en) * 1998-07-26 1999-12-22 重庆山花塑料厂 Composite pipes
CN101709434A (en) * 2009-12-23 2010-05-19 钢铁研究总院 Cl- corrosion resistant high-strength low-alloy steel bar and production method thereof
CN103539988A (en) * 2013-09-29 2014-01-29 青岛博玉特橡塑制品有限公司 High-elasticity rubber clamping pipe

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JP2005042130A (en) * 2003-07-22 2005-02-17 Nippon Kinzoku Co Ltd Stainless steel sheet, its production method, and gasket made of rubber-coated stainless steel sheet
CN202551784U (en) * 2011-10-14 2012-11-28 程黎黎 Plastic greenhouse frame pipe
CN103075630A (en) * 2011-10-25 2013-05-01 成都槟果科技有限公司 Compressive underground engineering pipe
CN105860159B (en) * 2016-06-02 2018-11-16 上海明凤汽车科技有限公司 Memory rubber composition, preparation method and applications

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5070429A (en) * 1990-03-20 1991-12-03 Union Connector Co., Inc. Portable power distribution cabinet and power distribution network with removable intermediate electrical connector
CN2355195Y (en) * 1998-07-26 1999-12-22 重庆山花塑料厂 Composite pipes
CN101709434A (en) * 2009-12-23 2010-05-19 钢铁研究总院 Cl- corrosion resistant high-strength low-alloy steel bar and production method thereof
CN103539988A (en) * 2013-09-29 2014-01-29 青岛博玉特橡塑制品有限公司 High-elasticity rubber clamping pipe

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